Yokogawa Standalone MW100 - Manual (Page 131)

3-9 IM MW100-01E
Setting and Data acquisition
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5
App
Index
Modbus/RTU Settings
Set the items below to use the Modbus/RTU function.
• For Modbus master, set “Modbus Master Setting 1 and 2.”
• For Modbus slave, set “Modbus master settings 1 and 2,” and “Receiver settings.”
For a description of setting the receiver, see “Connecting with Serial Communication
(Optional)” in this section.
Modbus Master Setting 1
This is for settings regarding the communication condition when using the Modbus
Master function.
1. From the Top screen, click Communication Setting > Modbus Master Setting 1.
2. Select the Enable check box under Master Function.
3. Select a communication interval from the Cycle list under Communication.
4. Select a timeout time from the Communication Timeout list under
Communication.
5. In the Gap between Messages list under Communication, select a gap time from
receiving of the response until the sending of the next command.
6. Select a number of times in the Retransmission list under Recovery Action.
7. Enter a recovery wait time in the Wait Time box under Recover Action.
8. Click the Apply button. The setting changes take effect.
For setting items of the Modbus Master function, see “Modbus Master Function (M1 Option)”
under “Modbus Protocol Specifications” in section 5.2
For a description of the communication timeout, see the Communication Command Manual
(IM MW100-17E).
3.2 Communication Settings